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The energy centrobaric method is made use of correcting the Doppler spectrum, the simulation predicted value of the target velocity is obtained.

用能量重心校多普勒频移,进而得到物体速度模拟计算值。

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Crash Course 天文

That means that its light will undergo a Doppler shift, and that can be detected.

这意味着它的光会经频移,并且可以被探测到。

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Crash Course 天文

Another way is to measure the Doppler shift in a star's light due to reflexive motion as the planet orbits.

方法是测量恒星光线的频移,这频移是由行星绕轨道运行时的自反运动引起的。

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Crash Course 天文

If we know the planets' mass from the star's Doppler shift, we can use the planet's size to calculate its density.

如果我们通过恒星的频移知道行星的质量,我们就可以用行星的大小来计算它的密度。

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万物简史

The stars Slipher looked at showed unmistakable signs of a Doppler shift, the same mechanism behind that distinctive stretched-out yee-yummm sound cars make as they flash past on a racetrack.

斯莱弗发现,这些恒星明确显示频移的迹象,跟赛车场上飞驰而过的汽车发的那连贯而又特有的“嚓——嗖”的声音属于同机制。

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Crash Course 天文

While we may not see that motion directly, if we take spectra of their light, breaking it up into individual narrow colors, we can see the Doppler shift in their spectra.

虽然我们可能无法直接看到这运动,但如果我们把它们的光谱分解成单独的窄色,我们可以看到在它们光谱中的频移

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Crash Course 天文

Star forming gas clouds emit a very narrow wavelength range of radio waves, and this could be used to measure their Doppler shift, how quickly they were moving toward or away from us.

恒星形成气体云发射波长范围非常窄的无线电波,这可以用来测量它们的频移,即它们向我们移动或远离我们的速度。

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